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(store_split_bit_field): Properly load a constant VALUE 

into a WORD_MODE pseudo.

From-SVN: r6092
This commit is contained in:
Richard Stallman 1993-11-15 01:55:03 +00:00
parent ba83886f6e
commit 3d709ff063
1 changed files with 12 additions and 6 deletions
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18
gcc/expmed.c
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@ -682,15 +682,21 @@ store_split_bit_field (op0, bitsize, bitpos, value, align)
/* Make sure UNIT isn't larger than BITS_PER_WORD, we can only handle that
much at a time. */
int unit = MIN (align * BITS_PER_UNIT, BITS_PER_WORD);
rtx word;
int bitsdone = 0;
if (GET_CODE (value) == CONST_DOUBLE
&& (word = gen_lowpart_common (word_mode, value)) != 0)
value = word;
/* If VALUE is a constant other than a CONST_INT, get it into a register in
WORD_MODE. If we can do this using gen_lowpart_common, do so. Note
that VALUE might be a floating-point constant. */
if (CONSTANT_P (value) && GET_CODE (value) != CONST_INT)
value = copy_to_mode_reg (word_mode, value);
{
rtx word = gen_lowpart_common (word_mode, value);
if (word)
value = word;
else
value = gen_lowpart_common (word_mode,
force_reg (GET_MODE (value), value));
}
while (bitsdone < bitsize)
{